Scuba backplate



FIG. 1 is an angled perspective view of the face of the scuba backplate closest to the diver's body, with the top at the left, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation thereof;

FIG. 4 is a side elevation thereof, the opposite side is a mirror image thereto;

FIG. 5 is a rear elevation thereof; and,

FIG. 6 is a bottom plan view thereof. 

We claim the ornamental design for a scuba backplate, substantially as shown and described. 